YIMAGUJRX Keyboard Sound Dampening Foam,Keyboard Foam for Mechanical Keyboard Bottom,Made of LE-32 Poron (3mm Thick)

A full-layout sheet of LE-32 Poron, 3mm thick, from YIMAGUJRX. It is cut to size with scissors and laid in the bottom of the case to reduce vibration and hollow sound.
Price range: See on Amazon
What we liked
- + LE-32 Poron with a fine, uniform cell structure that the listing says resists compression over time
- + One sheet of about 42.8 x 12.4cm covers 61 to 108 key layouts once trimmed to the board
- + Includes a plastic pry bar for opening the keyboard case, so no extra tool is needed for that step
Trade-offs
- - Not pre-cut for any layout: you trim it with scissors to match your case and standoffs
- - Only one 3mm thickness in this listing, which may be too thick or too thin for some cases
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